Hi there Marc-Andre Alpers wrote:
> I have no RS232 tester. The cover of the receiver is sealed. No screws. > http://666kb.com/i/bf7g1grgo1sbus2c1.jpg > > The connector inside: > http://666kb.com/i/bf7fxqd8cr17q7d8x.jpg That's female on the left and male on the right? > http://666kb.com/i/bf7g2xelg4xqppx3l.jpg That's male on the left and female on the right? > The transistor type is: > MC78L > 05ACP > M535 That's a 78L05; A 100 mA +5 V stabilizer IC. The circuit appears to be as follows; M F DCD 1 ----- 1 RXD 2 ----- 2 TXD 3 ----- 3 DTR 4 ----- 4 GND 5 --+-- 5 | | +----------+-----> Red GND | +-+-+ +--------+ S +---> Black +5V F | M +---+ DSR 6 | 78L05 RTS 7 --+-- 7 CTS 8 --------------------> Orange RI 9 --------------------> Brown The circuit 'expects' NTPD to raise RTS and read from CTS or RI. As far as I can tell NTPD does raize RTS but does not read from CTS or RI. Regards, Rob -- Nowadays people know the price of everything, and the value of nothing Oscar Wilde _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
